Treatment of ligature-induced peri-implantitis defects by regenerative procedures : A clinical study in dogs

We carried out a clinical evaluation of the hard tissue fill following treatment of ligature-induced peri-implantitis in dogs. Four dogs were used and their mandibular premolars (P2, P3 and P4) were removed. After 3 months of healing, two titanium implants were placed on each side of the mandible. A...

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Bibliographic Details
Published inJournal of Oral Science Vol. 41; no. 4; pp. 181 - 185
Main Authors Machado, M.A.N., Stefani, C. M., Sallum, E.A., Sallum, A.W., Tramontina, V.A., Nociti, F.H., Jr
Format Journal Article
LanguageEnglish
Published Japan Nihon University School of Dentistry 1999
Subjects
Analysis of Variance
Animals
Bicuspid
Bone Regeneration
Dental Implants - adverse effects
Disease Models, Animal
Dogs
Guided Tissue Regeneration, Periodontal - methods
Guided Tissue Regeneration, Periodontal - statistics & numerical data
Ligation - adverse effects
Mandible
peri-implantitis
Periodontitis - etiology
Periodontitis - therapy
PTFE membranes
Random Allocation
regenerative procedures
Time Factors
Titanium
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Summary:We carried out a clinical evaluation of the hard tissue fill following treatment of ligature-induced peri-implantitis in dogs. Four dogs were used and their mandibular premolars (P2, P3 and P4) were removed. After 3 months of healing, two titanium implants were placed on each side of the mandible. After 3 months, the abutment connection was performed, and experimental peri-implantitis was induced by placement of cotton ligatures in a submarginal position. The ligatures and abutments were removed after one month, and the peri-implant bone defects were assigned randomly to one of the treatments : debridement (control), debridement plus guided bone regeneration (GBR), debridement plus mineralized bone graft (BG), and debridement plus guided bone regeneration associated with a mineralized bone graft (GBR+BG). Clinical measurements of the peri-implant bone defects before and 5 months after treatment revealed no statistically significant differences between the defects treated by GBR, BG and GBR+BG. These 3 treatment methods provided more hard tissue fill than debridement alone (p < 0.05). Thus, it can be concluded that GBR, BG or a combination of the two techniques can enhance the hard tissue fill in defects caused by peri-implantitis in dogs. (J. Oral Sci., 41, 181-185, 1999)
ISSN:1343-4934
1880-4926
DOI:10.2334/josnusd.41.181